I'm wondering if there is a good way to determine one's open water distance capability from a known pool distance. I know what I can swim horizontally in a pool but I want to get an idea of how that would translate in an open water situation with no turns. I know that in an open water situation I would have no need to turn so that would help me go a bit quicker but I would also not have the added bonus of the push-off each time I turn around. Any ideas on this? I wish I had a good open water spot to figure this out but I don't right now.